Airbag control unit with part number 9148497

What does the airbag control unit 9148497 do?

The airbag control unit 9148497 controls the restraint system (SRS) of Volvo. It continuously evaluates the signals from the crash sensors and, in the event of an accident, decides which airbags and seatbelt pretensioners are triggered. It reports faults in the system via the airbag warning light.

The decision to trigger is made within milliseconds. Outside of an accident, the unit continuously checks the system for faults.

After an accident, it stores crash data and locks itself.

Why does the control unit 9148497 fail?

With 9148497, the most common cause is an entry of crash data left behind by an accident, even if no airbag was triggered. In addition, aged electronic components, cold solder joints, moisture and corrosion at plug connections, or voltage spikes can cause a fault.

The stored crash data remain in the unit after the accident, even if no airbag was triggered. They cannot be removed with an ordinary diagnostic tool. Airbag24 deletes them during the repair.

The other causes relate to the technology itself: electronic components age, solder joints can go cold, and moisture with corrosion attacks plug connections. Voltage spikes, for example from a weak battery or a jump start, place additional strain on the electronics.

How can you tell that the 9148497 is defective?

A defect in the 9148497 shows when the airbag warning light in the instrument cluster lights up permanently or intermittently, a fault message appears in the instrument cluster, or the diagnostic tool cannot establish a connection with the control unit. Another sign is a fault memory that cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may fail to trigger. Therefore take a lit warning light seriously and have the system checked rather than waiting.

Which vehicles is the 9148497 fitted in?

The 9148497 is fitted in these vehicles: Volvo S90 964 (1996-1998). To check whether your model is among them, compare it with the list.

The list shows the vehicles known to us for this control unit.

• Volvo S90 964 (1996-1998)

Comparing the part number on the label of the removed unit with this page only ensures that you have the correct unit. Have the fault memory read out beforehand. Only this result shows whether the control unit itself is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 9148338.

How does the repair of the 9148497 work?

For the repair of the 9148497, first have the fault memory read out and enclose the log. Then disconnect the battery before removing the control unit. Next, create a repair order online and send in the well-packed unit.

This sequence serves your safety and is therefore binding. Pack the unit before shipping so that it withstands knocks.

At Airbag24, the unit is examined on the test bench, defective components are replaced, the crash data are deleted and a function test is carried out. Processing usually takes 3–4 working days. The unit then returns to you. Our repairs come with 2 years' statutory liability for defects. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit 9148497 get to Airbag24?

You can send in the control unit 9148497 as a parcel. For an extra charge, UPS collection is also possible. UPS takes care of the return journey as well.

Do not forget to include the printed repair order, and pack the unit so it is shock-proof.